Boiler-cleaning compound.



UNITED I STATES PATENT OFFICE.

JACKSON RICHARDS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE UNITED STATES BOILER CLEANING COMPOUND COMPANY, OF

SAME PLACE.

BOILER-CLEANING COM POUND.

SPECIFICATION forming part of Letters Patent No. 683,330, dated September 24, 1901. Application filed February 25, 1901. Serial No. 48,828. (N Specim n -l To aZZ whom it may concern.-

Be it known that I, JAoKsoN RICHARDS, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented new and useful Improvements in BoilenOleaning Compounds, of which the following is a specification. a

My invention relates to a boiler-cleaning compound; and the objects of the same are to provide a compound which will readily dissolve in hot or cold water and which may be injected into a boiler for removing scale and preventing the formation of scale in new boilers.

The composition consists of the following ingredients: ground extract of logwood, ground potato starch, ground borax,(refined.) These ingredients are mixed together by the ordinary process of trituration in accordance with the quantity desired for a boiler of certain dimensions. The proportions which I desire to use are substantially as follows: ground extract of logwood, eighty parts; ground potato starch, ten parts; ground borax, (refined,) ten parts;

To use this compound, a quantity is dissolved in hot or cold water, using, say, fifteen pounds of the compound to clean a onehundred horse-'powerboiler. The compound is injected into the boiler through the injector and allowed to remain for a period of ten days, occasionally drawing off the boiler about one-half at the expiration of the ten days and then renewing the operation as before at stated intervals.

I am aware that each of the above ingredients has been used for cleaning boilers, but I am not aware that the combination of all three has ever been employed.

Having thus described my invention, what I claim is A compound for cleaning boilers, consisting of ground extract of logwood, ground potato starch and ground borax, in the proportions substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses.

JACKSON RICHARDS.

Witnesses:

WINFIELD S. WALKER, FREDERICK H. VOLLMER, 

